:root {
  --bg: #0d0f12;
  --surface: #0d0f12;
  --text: #f3f5f7;
  --muted: #9ca5b0;
  --line: #20262e;
  --hot: #f0b04f;
  --critical: #ff8d8f;
  --watch: #7bd7a8;
  --accent: #ffffff;
  --ember: #ff8a4c;
}

html[data-theme="light"] {
  --bg: #f6f4ef;
  --surface: #ffffff;
  --text: #11161d;
  --muted: #5d6978;
  --line: #dde3ea;
  --hot: #b56707;
  --critical: #c63538;
  --watch: #2d8d65;
  --accent: #0f1822;
}

* {
  box-sizing: border-box;
}

html,
body {
  background: var(--bg);
}

body {
  margin: 0;
  min-height: 100vh;
  padding: 44px 0 68px;
  font-family: "Manrope", "Segoe UI", sans-serif;
  color: var(--text);
  background: var(--bg);
}

.page {
  width: min(1080px, 92vw);
  margin: 0 auto;
}

.hero {
  max-width: 760px;
}

.site-header {
  width: 100%;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}

.header-actions {
  display: inline-flex;
  align-items: center;
  gap: 14px;
}

.site-nav {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.prefs {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.pref-group {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  border: 1px solid var(--line);
  border-radius: 7px;
  padding: 2px;
}

.pref-btn {
  border: 0;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-size: 0.72rem;
  padding: 3px 6px;
  border-radius: 5px;
  cursor: pointer;
}

.pref-btn.active {
  color: var(--text);
  background: color-mix(in srgb, var(--line) 52%, transparent);
}

.site-nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.site-nav a.active,
.site-nav a:hover {
  color: var(--text);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.brand-mark {
  width: 34px;
  height: 34px;
  display: inline-flex;
  color: var(--ember);
}

.brand-mark svg {
  width: 34px;
  height: 34px;
}

.brand-mark img {
  width: 34px;
  height: 34px;
  display: block;
  object-fit: contain;
}

.brand-text {
  display: inline-flex;
  flex-direction: column;
  line-height: 1.1;
}

.brand-text strong {
  font-size: 1rem;
  letter-spacing: 0.01em;
}

.brand-text small {
  color: var(--muted);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.hero {
  margin-top: 18px;
}

.hero h1 {
  margin: 10px 0 8px;
  font-family: "Newsreader", Georgia, serif;
  font-size: clamp(1.5rem, 5.2vw, 4rem);
  line-height: 1;
  letter-spacing: -0.015em;
  font-weight: 500;
  white-space: nowrap;
}

.method-hero h1,
.method-hero .subtitle {
  white-space: normal;
}

.method-hero .subtitle {
  max-width: 62ch;
}

.eyebrow {
  margin: 0;
  font-size: 0.95rem;
  letter-spacing: 0.01em;
  font-weight: 700;
  color: var(--accent);
}

.subtitle {
  margin: 0;
  max-width: none;
  color: var(--muted);
  line-height: 1.7;
  font-size: clamp(0.7rem, 2.2vw, 1rem);
  white-space: nowrap;
}

.toolbar {
  margin-top: 36px;
  margin-bottom: 12px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
}

.section-block {
  margin-top: 16px;
}

.section-label {
  margin: 0 0 8px;
  color: var(--muted);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 700;
}

.method-text {
  margin: 0 0 8px;
  max-width: 70ch;
  color: color-mix(in srgb, var(--text) 78%, var(--bg));
  line-height: 1.7;
  font-size: 0.92rem;
}

.filters {
  display: flex;
  align-items: center;
  gap: 12px;
}

.filter-label {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  font-weight: 700;
}

.filter-btn {
  border: 0;
  background: transparent;
  font-family: inherit;
  padding: 0;
  border-radius: 0;
  cursor: pointer;
  color: var(--muted);
  font-weight: 600;
  font-size: 0.9rem;
  text-decoration: underline;
  text-decoration-color: transparent;
  text-underline-offset: 3px;
  transition: color 140ms ease, text-decoration-color 140ms ease;
}

.filter-btn.active {
  color: var(--text);
  text-decoration-color: var(--text);
}

.meta {
  margin: 0;
  color: var(--muted);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 700;
}

.controls {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
  justify-content: flex-end;
}

.control-input,
.control-select {
  border: 1px solid var(--line);
  background: transparent;
  color: var(--text);
  font: inherit;
  font-size: 0.8rem;
  padding: 5px 8px;
  border-radius: 6px;
}

.control-input {
  width: 190px;
}

.control-input::placeholder {
  color: var(--muted);
}

.control-input:focus,
.control-select:focus {
  outline: none;
  border-color: #3a4759;
}

.feed {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.signal-card {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 12px 12px 11px;
  background: transparent;
  animation: reveal 260ms ease;
}

.signal-card.hot-card {
  border-color: rgba(255, 138, 76, 0.35);
  background: linear-gradient(180deg, rgba(255, 138, 76, 0.06) 0%, rgba(255, 138, 76, 0) 100%);
}

@keyframes reveal {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.card-topline,
.card-bottomline {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.card-topline {
  font-size: 0.68rem;
  color: var(--muted);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.source {
  display: inline-flex;
  width: 14px;
  height: 14px;
  color: var(--accent);
}

.source svg {
  width: 14px;
  height: 14px;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.band {
  margin-left: auto;
  padding: 0;
  border-radius: 0;
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  background: transparent;
}

.band.critico {
  color: var(--critical);
}

.band.quente {
  color: var(--hot);
}

.band.observacao {
  color: var(--watch);
}

.title {
  margin: 7px 0 6px;
  font-family: "Newsreader", Georgia, serif;
  font-size: clamp(1.15rem, 1.6vw, 1.45rem);
  line-height: 1.15;
  font-weight: 500;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
  overflow: hidden;
}

.title-link {
  color: var(--text);
  text-decoration: none;
}

.title-link:hover {
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.summary {
  margin: 0;
  color: color-mix(in srgb, var(--text) 78%, var(--bg));
  line-height: 1.52;
  font-size: 0.88rem;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 1;
  overflow: hidden;
}

.card-bottomline {
  margin-top: 9px;
  font-size: 0.72rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 6px;
}

.metrics {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.metric-chip {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.metric-chip svg {
  width: 11px;
  height: 11px;
}

.related {
  opacity: 0.9;
}

.tags {
  display: block;
  width: 100%;
}

.origin {
  display: inline-block;
  margin-top: 8px;
  color: var(--text);
  font-weight: 600;
  font-size: 0.74rem;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.origin:hover {
  opacity: 0.7;
}

.empty {
  grid-column: 1 / -1;
  border: 1px dashed var(--line);
  border-radius: 10px;
  padding: 16px;
  color: var(--text);
  background: var(--surface);
}

@media (max-width: 680px) {
  body {
    padding-top: 30px;
  }

  .page {
    width: min(760px, 93vw);
    margin-top: 0;
  }

  .toolbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .site-header {
    align-items: flex-start;
    flex-direction: column;
    gap: 10px;
  }

  .header-actions {
    width: 100%;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 10px;
  }

  .site-nav {
    gap: 10px;
  }

  .controls {
    width: 100%;
    flex-wrap: wrap;
    margin-left: 0;
  }

  .control-input {
    width: 100%;
  }

  .meta {
    margin-left: 0;
  }

  .section-head {
    align-items: flex-start;
    flex-direction: column;
    gap: 4px;
  }

  .feed {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .band {
    margin-left: 0;
  }

  .title {
    font-size: 1.22rem;
  }
}

@media (min-width: 1220px) {
  .feed {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}